Nevermind. I got it.
this is what i was thinking.
place bamboo in the big pot with rocks and everything, little pump on the bottom of the pot, so water filters trough the rock before gets to the pump, and pump pumps water to the top and drips it over the bamboo plant again. And maybe even fogger inside the pot
I know you will have to clean it and replace water once a week or so, but this is grate idea. Ill make it work, and let you know
hydrogen cyanide is not an issue at most pH values above 7.0. I did a study on cyanide toxicity to tadpoles and we had to wear chemsuits and regualtors the whole deal- but we never got a detectible amount of hydrogen cyanide- (which evidently smells like almonds if you have the genetic trait to smell it) even when we were working with really high levels of cyanide because the reaction to hydrogen cyanide is a slow reaction we never had any. Now if you have a low pH and a little time then levels can get nasty.